Improvement in galvanic batteries



J. vPLUMBII, JI'. .GALVANIG BATTERY.

UNITED, STATES,

PATENT OFFICE.v

JOHN PLUMBE, JR.,`OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN GALVANIC BATTERIES.

Specification forming part of Letters PatentNo. 2.984dated March 4,1843,

To all whom it may concern:

Beit known that I, JOHN PLUMBE, Jr., of Boston, in the county ot S'ulolk and State of Massachusetts, have invented an Improvement in the Battery which is now Generally Used in Electro-Galvanic Processes; and I do hereby declare that the following speciiication, taken in connection with the accompanying (lrawings, l'orms a full and exact description ofthe same, wherein the nature andprinciples ofmy invention, by which it may be distinguished from others of like character, t0- gether with such parts thereof as I consider new and claim as my discovery, 'are duly represented.

Figure 1 Qof the drawings above mentioned exhibits a side elevation of the exterior or coppercasc 'of an ordinary gal vanic battery.

vber for containing a'quan'tity ot' sulphateol" copper, for the. purpose of keeping up, from time to time, the requisitestrength of the solution'in the vessel, the liquid obtaining access to the salt through a series of small holes bored through the side of the cylinder, and the salt, as it is dissolved, passing through thesaid holes into the solution.

Mviinprovement on the above is shown inv Figs. 3 and 4 of the drawings, the forrnei1 being a side elevation, and the lattera vertical and central section, of my new battery, the- I'said improvement consisting in extending the lip entirely around the exterior surface ofthe outer` vessel of the battery, and so ast forni a conf tinuous circular trough, b b, Fig. 4, about the same, c representing the cylindrical case, and d d vthe circular lip surrounding it, thetop of said lip being'raised somewhat above the'top ofthe vessel c, as seenin Fig. 4. A series' of small holes, f f, is bored through the cylinder c into the space b b at or nearitsbottom.' The y sulphate of copper, being put in the space b b, will encircle the liquid in the vessel c,- and, as it is dissolved, will be more equallyand quickly distributed throughout; the liquid'than when disposed in theordinary lip, a, Figs. land 2. Besides, as the circular lip d d is elevated above the top ot' the vessel o, whatever liquid 'may be accidentally spilled over the said top will fall into the space b b, and `from thencerun back again through thev holes ff into'i'th'e bat-i tery. The external surface of the 4battery is thus kjept free from moistureor being A.wetfrom theA cause above mentioned;

j ar or inclination thereof 'Vis'.often s uicient to throw the liquid over the sides vof the same,

which, running down upon the board or table on whichthe battery rest-s and wetting its up per surface, causes serious inconvenience in the operation of the apparatus.

The external vessel or case, c, ofthe battery may be elliptical, square, or elongated in its horizontal section, insteadl of being circular, as hereinbefore described, and still have the 'trough formed entirely around it, and -iu other respects as above set tbrth. Therefore, in concluding my specification,y

I claim-'- Continuing vthe trough or lip entirely around the upper portion ot' the outer vessel of th battery, substantiallyin the manner and for the purposes above explained.'

In testimony that the foregoing's a true Adescription of i'nysaid invention and discovery- I have hereto 'set my signature this-17th day-v of -November, in the year 1842, j

, JoHN PLUMBE; JR. .Witnesses: l y1t. H. EDDY,

OALEB EDDY. 

